Improvement in railroad-gates



H. GRAYBILL. RAILROAD GATE.

Patented June13,187 6.

momlns.

MPETERS, PHOTO-LITHOGRAPHER, WASHXNGTON D C.

TENT OFFICE.

HARMON GRAYBILL, OF OASSVILLE, WISCONSIN.

IMPROVEMENT IN RAILROAD-GATES.

Specification forming part of Letters Patent N 0. 178,628, dated June13, 1876 application filed April 25, 1876.

To all whom it may concern Be it known that I, HARMON GRAYBILL, ofOassville, in the county of Grant and State of Wisconsin, have inventeda new and Improved Railroad-Gate, of which the following is aspecification In the accompanying drawing, Figure 1 represents a frontelevation of my improved railroad-gate, shown in closed position asconnected to the track, and Fig. 2 is a side view of the same. v

Similar letters of reference indicate corresponding parts.

' My invention has reference to animproved railroad, farm, or other gatethat extends across the track and is automatically opened and closed bythe trains and the invention consists of swinging lateral gate-sections,that are thrown up to the outside of the, track by the depression of thebearing-rails with inclined ends that operate by suitable transmittingmechanism the folding gate-sections.

In the drawing, A represents the bearingrails with inclined ends, and ofsuch shape as to project above the top of the rails in such a mannerthat they are depressed by the wheels of the cars, and raised again whenthe train has passed beyond the same. Each bearingrailA is connected bya number of verticallydownward-extending crank-rods, B, that are guidedin suitable staples with crank-arms a of a shaft, 0, turning in bearings12 of timbersupports, which are placed longitudinally below thetrack-rails to the length of the upper bearing-rails. The crank-shaft Orevolves by mutilated pinions d d, a shorter drum carrying and producesthe winding up of the shaft 0,

gate-connecting chain D on the drum or cylinder D. The'chains D areattached to the upper extended rails of the gate-sections E, which areso pivoted to supporting-posts E that they fold and open readily by theaction of the chains. The gate-sections E extend laterally across thetrack, and are made of top and bottom rails, with upright connectingpieces pivoted thereto, so that when the train passes over thebearing-rails the chains wind up on the drums and swing thegate-sections upward in folded state to the outside of the track,allowing the train to pass. As soon as the wheels of the last car haveleft the actuating-rails the gates drop by their own weight and causethe return-motion of the bearingrails into their former position readyfor the next train. The actuating mechanism is protected against snowand moisture by being boxed up below the ties, and produces thus anautomatic railroad-gate of reliable, simple, and durable construction.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination of the bearing'rail, crankrods, crank-shaft, mutilatedpiuions, drumshat't, drum, and chain, with the extended lever end of thetop rail of the swinging gatesection, to produce opening and dropping ofgate on depression and release of the bearing rail, substantially asspecified.

- HARMON GRAYBILL.

Witnesses:

J. B. ()RTSCHEID, T. B. WALKER.

